yo Krafty,
GOOD STUFF,
May I add this too?
Check Battery voltage - must be at least 12.4 volts.
Cranking voltage at the starter is at least 9.6 volts.
and to "3- If you dont hear both pump"
The Control Module (PCM) runs the pump(s) for one second when it receives an ignition-on signal. It also runs the pump(s) as long as it receives a PIP signal from the Hall-effect devices (inside the Distributor), it continues pump operation even after the key is released from START. If the PIP signals fall below 120RPM, the control module cuts off the signal to the fuel pump relay.
"Check the fuel pump relay when cranking the engine over. Not the 2 second run after the key is turned on, but while cranking the engine. If the fuel pump relay kicks on when cranking, the TFI & Stator are good..."
Source: by Ryan M (Fireguy50) at oldfuelinjection.com
The pump(s) will also run when the terminals of the fuel pump test connector are jumped. the Control module signals the pump(s) when it receives a CRANK signal, and when the Control module gets PIP signals that the engine is running. the pump(s) do not run if the PIP indicates the engine is not running even with ignition ON {except for that first one second}.
In the Diagnostic Link Connectors for EEC-IV processors (84-95);
Connect Fuel Pump Test terminal to any ground (such as Signal Return) to force the fuel pump(s) on when the key is in RUN.
Diagram by my pal, BroncoJoe19
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If pump(s) run, then diagnose the ignition ckt to the FP Relay.
Wiring Diagram in an 89 5.0, 5.8 & 7.5 (partial at FP relay); miesk5 Note; G801 is located on the LH inner fender behind the headlamp & both pumps Grounds join @ Splices S155 & S903
Source: by Seabronc (Rosie, Fred W) at
http://broncozone.com/topic/20547-fuel-pump-wont-shut-off/
& Such as in; No Start Troubleshooting but Starter Cranks Engine in 4.9, 5.0, or 5.8L; "....TIP 1: Since a lot of folks confuse a No Crank Condition with a No Start Condition... I'll clear it up right now: In a No Start Condition means your vehicle's Starter Motor is cranking the Engine but the Engine is not starting. In a No Crank Condition, the Engine is not cranking when you turn the key to crank the Engine. This article only deals with a No Start Condition..." read more
Source: by easyautodiagnostics.com @
http://troubleshootmyvehicle.com/ford_no_start_4.9L_5.0L_5.8L/diagnose_no_start_1.php
Two electric pumps are used on fuel injected models to 1989; a low pressure boost pump mounted in the fuel tank and a high pressure pump mounted on the vehicle frame. The low pressure pump is used to provide pressurized fuel to the inlet of the high pressure pump and helps prevent noise and heating problems.
And it won't take much time to do a
Self Test for Diagnostic Trouble Codes (DTC)s by my pal, BroncoJoe19The engine temperature must be greater than 50° F for the Key On Engine Off (KOEO) Self-Test
Later, if you get it running; and greater than 180° F for the Key On Engine Running (KOER) Self-Test.
Run it around to heat the engine up and shift thru all gears incl Reverse. Then turn off all accessories/lights, etc.
Make sure A/C is off and transmission is in Park (automatic) or in Neutral for a Manual & release clutch.
Do Key On Engine Off (KOEO) portion
Some typical DTCS are;
DTC 87 - FP relay circuit failure- suspect inertia switch, fusible link, FP relay
Source: by miesk5 at Ford Bronco Zone Forums
DTC 87, 95 & 96; "...These codes relate to low or no power reaching the fuel pump. Start testing at the fuel pump relay. The relay must respond to the EEC processor and the relay contacts must be a low resistance path for fuel pump power. Relay testing can be done in a couple minutes with the fuel pump test table. Fuel pump relay testing;1. Use solenoid test at EEC pin 22 to check relay coil current draw. 2. Voltage at pump power terminal must be within .5v of battery power when relay is turned on with amp meter at pin 22. Check power from battery if voltage is low. Check the inertia switch and fuse if battery voltage is missing. Pin 22- (light blue-orange) Grounded to turn "on". Voltage will drop to about 1v when "on". Current draw will be 160 to 270mA Pin 8- fuel pump monitor (dark green-yellow) 0v engine off, battery voltage with engine running..."
Source: by Dustin S (Dustball, Mellow Yellow, Mr. Laser Boy)